Comments for AM Stereo http://austinmills.name Austin Mills: Code, Methodologies, Games, Gadgets Fri, 04 Mar 2011 08:58:30 +0000 hourly 1 http://wordpress.com/ Comment on Using Tsung for Load Testing Rails or Web Apps by Selvam http://austinmills.name/2008/09/12/using-tsung-for-load-testing-rails-or-web-apps/#comment-600 Fri, 04 Mar 2011 08:58:30 +0000 http://austinmills.name/?p=40#comment-600 When I tried installing erlang using ‘sudo apt-get install erlang’, I get the following error.

Reading package lists… Done
Building dependency tree
Reading state information… Done
erlang is already the newest version.
The following packages will be upgraded:
ubuntu-sso-client
1 upgraded, 0 newly installed, 0 to remove and 130 not upgraded.
28 not fully installed or removed.
Need to get 0B/29.2kB of archives.
After this operation, 0B of additional disk space will be used.
(Reading database … 131079 files and directories currently installed.)
Preparing to replace ubuntu-sso-client 1.0.7-0ubuntu1 (using …/ubuntu-sso-client_1.0.8-0ubuntu1_all.deb) …
/var/lib/dpkg/info/ubuntu-sso-client.prerm: 6: update-python-modules: not found
dpkg: warning: subprocess old pre-removal script returned error exit status 127
dpkg – trying script from the new package instead …
/var/lib/dpkg/tmp.ci/prerm: 6: update-python-modules: not found
dpkg: error processing /var/cache/apt/archives/ubuntu-sso-client_1.0.8-0ubuntu1_all.deb (–unpack):
subprocess new pre-removal script returned error exit status 127
/var/lib/dpkg/info/ubuntu-sso-client.postinst: 28: update-python-modules: not found
dpkg: error while cleaning up:
subprocess installed post-installation script returned error exit status 127
Errors were encountered while processing:
/var/cache/apt/archives/ubuntu-sso-client_1.0.8-0ubuntu1_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

How can I resolve this?

Thank you

]]> Comment on Using Tsung for Load Testing Rails or Web Apps by Kevin Blaxland http://austinmills.name/2008/09/12/using-tsung-for-load-testing-rails-or-web-apps/#comment-594 Tue, 01 Feb 2011 15:55:46 +0000 http://austinmills.name/?p=40#comment-594 Hello, I think your blog might be having browser compatibility issues. When I look at your blog site in Opera, it looks fine but when opening in Internet Explorer, it has some overlapping. I just wanted to give you a quick heads up! Other then that, fantastic blog!

]]> Comment on Barbecue Tech by Babygirl http://austinmills.name/2010/11/28/barbecue-tech/#comment-486 Mon, 29 Nov 2010 05:11:47 +0000 http://austinmills.wordpress.com/?p=97#comment-486 That looks like a nice smoker

]]> Comment on Barbecue Tech by topenga http://austinmills.name/2010/11/28/barbecue-tech/#comment-484 Mon, 29 Nov 2010 03:38:20 +0000 http://austinmills.wordpress.com/?p=97#comment-484 I…On the one hand, that’s pretty damn cool and insanely geeky! On the other…IT’S A BBQ. Go tend to it in the dark and cold (okay, sun and heat and humidity) like a man!

]]> Comment on About Me… by Benjamin Dick http://austinmills.name/about-2/#comment-4 Tue, 02 Feb 2010 18:24:05 +0000 http://austinmills.wordpress.com/?page_id=48#comment-4 Mr. Mills,

I work on a PBS series called History Detectives. We are working on a story that involves the ‘Great Seal Bug’, aka ‘The Thing’, and we would love to use your Flickr image of the compartment in which the bug was found (http://www.flickr.com/photos/austinmills/13431050/in/set-329599/). If you would be interested in allowing us to use it, please get back back to me at your earliest convenience. Thanks!

]]> Comment on Transferring an EC2 Image (AMI) from one account to another by Amazon EC2 AMI Cloner http://austinmills.name/2007/12/20/transferring-an-ec2-image-ami-from-one-account-to-another/#comment-379 Thu, 17 Sep 2009 06:28:42 +0000 http://austinmills.name/?p=26#comment-379 [...] http://entxtech.blogspot.com/2008/03/how-to-move-amazon-ami-ec2-image-from.htmlhttp://austinmills.name/?p=26 [...]

]]> Comment on Using Tsung for Load Testing Rails or Web Apps by Austin Mills http://austinmills.name/2008/09/12/using-tsung-for-load-testing-rails-or-web-apps/#comment-410 Thu, 20 Aug 2009 19:15:11 +0000 http://austinmills.name/?p=40#comment-410 Ben:

Great, thanks for the update!

]]> Comment on Using Tsung for Load Testing Rails or Web Apps by Ben http://austinmills.name/2008/09/12/using-tsung-for-load-testing-rails-or-web-apps/#comment-409 Thu, 20 Aug 2009 18:18:49 +0000 http://austinmills.name/?p=40#comment-409 Great writeup, thank you.
Tsung now has Ubuntu packages, so you don’t need to compile. You can grab the latest deb at http://tsung.erlang-projects.org/dist/ubuntu/

Then just sudo dpkg -i on it.

]]> Comment on Using vi to edit binary files in hex by BSG http://austinmills.name/2006/11/13/using-vi-to-edit-binary-files-in-hex/#comment-7 Wed, 10 Jun 2009 11:49:29 +0000 http://austinmills.name/?p=7#comment-7 Thanks! but this cannot be used in Solaris

]]> Comment on Using Tsung for Load Testing Rails or Web Apps by Austin Mills http://austinmills.name/2008/09/12/using-tsung-for-load-testing-rails-or-web-apps/#comment-408 Mon, 12 Jan 2009 21:42:05 +0000 http://austinmills.name/?p=40#comment-408 Chris,

It depends on what your setup is with EC2. If you only have a single EC2 server, you just point Tsung to the external IP of that instance. If you have a loadbalancer and want to test the whole cluster, then you could point at the loadbalancer. EC2 by itself doesn’t provide load-balancing (until later this year, but there are open-source projects for this), so you’ll be using something external anyway, or running something like Pound/etc. on one of your instances.

In our case, instead of going through the loadbalancer like the one that we have set up for our production cluster, I went directly to a single EC2 instance. For us it’s reasonable to say that the performance of our system scales linearly (within certain bounds), so I can take the results from load-testing a single instance and feel pretty good that our N-instance cluster will provide N times that performance (up to a certain point, at least).

YMMV, based on the details of your setup, but you should definitely start with testing a single instance before looking at the performance of your whole system, so you have a context for the results. Then if the cluster results aren’t linearly improving over the single-node results, you have some things to look at. :)

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